By the test of the car engine, the car engine P2320 Code is found. This code is necessary thing and it plays important role for solving the car engine. Here is the main problem is powertrain what is easy to fix. You should check the check list throttle/Pedal Position Sensor/Switch A Circuit Intermittent, Injection Pump Fuel Metering Control ‘A’ High (Cam/Rotor/Injector) and exhaust Gas Recirculation Sensor B Circuit High. You should test the car engine fast and fix the car engine by an automobile engineer. The powertrain problem of the car engine is easy to solve if you hand over the car to an expert automobile engineer.